Posts not updating, permalink problem maybe? (1 post)

I'm in love. With wordpress. But I've got a problem on one of the sites I maintain poorly.

I have some year old posts that I modify and usually redate... I make the changes, and save the update. Then, sometimes, the live page doesn't match what I've changed. These are posts with a fairly non-ambiguous URLs, and I just can't get them to update. I've even tried trashing the old posts (haven't emptied the trash yet), but take a look at this...

To make this summertrack11 post, I coped the entire HTML from summertrack and pasted it into a new blog post -- this is only because I couldn't get the original post to update. I'd save the post as a draft, republish it, and the live post wouldn't update. I'd password protect the post, and it would still load. As I noted above, I trashed it and it still loads the original page from the original permalink.

I've forced a rebuild of the permalink structure, but I don't even know if this is a real issue with permalinks or not.